20809723935

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1385929}}^1$

素因数の和:1385968

約数の個数: 64

約数和(自身を含む): 44704558080

約数和(自身を除く): 23894834145

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 39, 55, 65, 77, 91, 105, 143, 165, 195, 231, 273, 385, 429, 455, 715, 1001, 1155, 1365, 2145, 3003, 5005, 15015, 1385929, 4157787, 6929645, 9701503, 15245219, 18017077, 20788935, 29104509, 45735657, 48507515, 54051231, 76226095, 90085385, 106716533, 126119539, 145522545, 198187847, 228678285, 270256155, 320149599, 378358617, 533582665, 594563541, 630597695, 990939235, 1387314929, 1600747995, 1891793085, 2972817705, 4161944787, 6936574645, 20809723935]

約数ペア:

[(1, 20809723935), (3, 6936574645), (5, 4161944787), (7, 2972817705), (11, 1891793085), (13, 1600747995), (15, 1387314929), (21, 990939235), (33, 630597695), (35, 594563541), (39, 533582665), (55, 378358617), (65, 320149599), (77, 270256155), (91, 228678285), (105, 198187847), (143, 145522545), (165, 126119539), (195, 106716533), (231, 90085385), (273, 76226095), (385, 54051231), (429, 48507515), (455, 45735657), (715, 29104509), (1001, 20788935), (1155, 18017077), (1365, 15245219), (2145, 9701503), (3003, 6929645), (5005, 4157787), (15015, 1385929)]